27.
WRTL Arc Photographed in April 2014 on Staker Lane, Burnaston, at
its junction with the A38 Findern roundabout.

What I think happened:
The column was struck by a vehicle; it is located on a central splitter for
vehicles entering or exiting the roundabout. For traffic heading towards the
roundabout, the splitter is approached from something of a blind bend, and this,
combined with the slight camber of the carriageway, and a driver's unfamiliarity
with the road, can lead to vehicles skidding, as has seemingly happened here.
Although leaning, the column is relatively undamaged, though the two Arc
lanterns have lost their canopies. The adjacent Keep Left bollard top is also
missing. The column was previously replaced in around 2006 after again being
struck by a vehicle. This previous column supported two
Philips MA 50 135 W SOX lanterns.

Pictures:

Although not obvious here, the facing
lantern's optic showed signs of water ingress as a result of the missing
canopy.

The right-hand lantern's capacitor is
visible on the exposed gear tray.